allow testing individual js files

all casperjs/ subdirectories now treated as test categories

IPython/testing/iptestcontroller.py

@@ -159,6 +159,14 b' class PyTestController(TestController):'
         self.cmd[2] = self.pycmd
         super(PyTestController, self).launch()
 
+def get_js_test_dir():
+    import IPython.html.tests as t
+    return os.path.join(os.path.dirname(t.__file__), 'casperjs')
+
+def all_js_groups():
+    import glob
+    return glob.glob(get_js_test_dir() + '*/')
+
 class JSController(TestController):
     """Run CasperJS tests """
     def __init__(self, section):
@@ -177,21 +185,11 b' class JSController(TestController):'
     def launch(self):
         # start the ipython notebook, so we get the port number
         self._init_server()
-
-        import IPython.html.tests as t
-        test_dir = os.path.join(os.path.dirname(t.__file__), 'casperjs')
-        includes = '--includes=' + os.path.join(test_dir,'util.js')
-
-        if self.section == 'js':
-            test_cases = os.path.join(test_dir, 'js')
-        elif self.section == 'notebook':
-            test_cases = os.path.join(test_dir, 'notebook')
-        elif self.section == 'widgets':
-            test_cases = os.path.join(test_dir, 'widgets')
-        
+        js_test_dir = get_js_test_dir()
+        includes = '--includes=' + os.path.join(js_test_dir,'util.js')
+        test_cases = os.path.join(js_test_dir, self.section)
         port = '--port=' + str(self.server_port)
         self.cmd = ['casperjs', 'test', port, includes, test_cases]
-
         super(JSController, self).launch()
 
     @property
@@ -210,8 +208,6 b' class JSController(TestController):'
         self.server.join()
         TestController.cleanup(self)
 
-js_test_group_names = {'js', 'notebook', 'widgets'}
-
 def run_webapp(q, ipydir, nbdir, loglevel=0):
     """start the IPython Notebook, and pass port back to the queue"""
     import os
@@ -236,10 +232,13 b' def prepare_controllers(options):'
     if testgroups:
         py_testgroups = [g for g in testgroups if (g in py_test_group_names) \
                                                 or g.startswith('IPython.')]
-        js_testgroups = [g for g in testgroups if g in js_test_group_names]
+        if 'js' in testgroups:
+            js_testgroups = all_js_groups()
+        else:
+            js_testgroups = [g for g in testgroups if g not in py_testgroups]
     else:
         py_testgroups = py_test_group_names
-        js_testgroups = js_test_group_names
+        js_testgroups = all_js_group_names()
         if not options.all:
             test_sections['parallel'].enabled = False